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| Troubleshooting |
| Symptom Charts/Video (Continued) - 8 | |
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| Video (Continued) |
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Screen is dark, audio | 1 | Remove peripherals. | |||
and drive do not | 2 | Remove NuBus cards. | |||
operate, fan is | 3 | Replace DRAM SIMMs | |||
running, and LED is | 4 | Replace VRAM SIMMs. | |||
lit | 5 | Replace video card. | |||
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| 6 | Replace power supply. | |
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| 7 | Replace logic board. | |
Partial or whole | 1 | Replace video cable. | |||
screen is bright and | 2 | Replace VRAM SIMMs. | |||
audio is present, but | 3 | Replace video card. | |||
no video information | 4 | Replace monitor. Refer to appropriate monitor manual to | |||
is visible | 5 | troubleshoot defective monitor. | |||
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| Replace logic board. Retain customer’s SIMMs. | ||
